Limitations in measurement of subsurface temperatures using pulsed photothermal radiometry.
Limitations in measurement of subsurface temperatures using pulsed photothermal radiometry.
复制标题
使用脉冲光热辐射测量测量地下温度的局限性。
DOI：
10.1117/12.275218
复制
发表时间：
1997
影响因子：
3.5
通讯作者：
S. Prahl
中科院分区：
文献类型：
--
作者：
U. Sathyam;S. Prahl
本文提出了一种利用非接触表面温度测量来计算内部温度的脉冲光热技术。反演过程基于用矩阵方程近似描述热相互作用的积分方程。然后使用奇异值分解求解矩阵方程。该方法进行了评估，使用计算机模拟和组织幻影和皮肤的实验。该算法预测的内部温度在10%内的均匀样品下降到约500 μm的深度。它不能准确地预测非均匀样品的内部温度，但对地下吸收体的深度和守恒能量产生了相当准确的估计。吸收体计算深度的不确定性随深度增加而增加。目前，该技术可以探测到500 μm的深度。
A pulsed photothermal technique to calculate internal temperatures from noncontact surface temperature measurements is presented. The inversion process is based on approximating the integral equation describing the thermal interaction with a matrix equation. The matrix equation is then solved using singular-value decomposition. The method was evaluated using computer simulations and experiments with tissue phantoms and skin. The algorithm predicted internal temperatures within 10% for homogeneous samples down to a depth of about 500 μm. It did not predict internal temperatures accurately for inhomogeneous samples, but yielded fairly accurate estimates of the depths of subsurface absorbers and conserved energy. The uncertainty in the calculated depth of the absorber increased with depth. Currently this technique can probe depths to 500 μm.
影响因子：
6.5
作者：
ANDERSON, RR;PARRISH, JA
通讯作者：
PARRISH, JA
DOI：
10.1364/josaa.12.001479
发表时间：
1995-07-01
影响因子：
1.9
作者：
MILNER, TE;GOODMAN, DM;NELSON, JS
通讯作者：
NELSON, JS